Help for calculating diameter or circumference of a tree

Robin2:
On a side note, this sounds like an attempt to replace a human with a machine. I think it is time we stopped doing that. It has been going on since the industrial revolution and, while it has made a few people very rich, it has not made humanity any happier.

...R

Really OT, but do you have to work 12 hours a day 6/7 days a week?